Boy wants to fuck his friend

Email How do I begin? I met my current boyfriend through a family friend a few years ago, and after a while we started seeing each other. As our romance developed, my friend seemed to distance himself from me specifically and I think he was unhappy for us. Anyway I really didn't care I didn't think anything of it. It's now five years later and they are still friends and me and my boyfriend are a great couple, or so I thought. I don't really get on with my boyfriend's brothers, so I always call ahead when I'm visiting to make sure he's home and I don't have to deal with them.